What does the red LED on the SOP panel indicate?

The red LED on the SOP (Standard Operator Panel) indicates a fault condition. In robotic systems like those used with FANUC handling tools, status indicators such as LEDs are crucial for operators to quickly identify the operational state of the robot. A red LED typically signals that something is malfunctioning or that there is an error that requires immediate attention, indicating a disruption in the normal operation of the system. This feature is designed to ensure the safety and reliability of the equipment, allowing operators to respond swiftly to any issues that might arise, thereby minimizing downtime and preventing potential damage to the machinery or the workspace.

Other options, while related to operational statuses, do not specifically align with the meaning of the red LED. The power status, cycle running, and emergency stop indicators typically involve different color codes or signals to convey their respective conditions. For instance, a green LED might signal that the system is powered and running normally, while an amber LED might denote a caution or a pending action. Therefore, recognizing the significance of the red LED is essential for maintaining operational safety and efficiency.